Home / 124,540.13-171,848.03-70,819.20

Finding the Fourth Proportional to 124,540.13, 171,848.03 and 70,819.20

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Solution

The fourth proportional to 124,540.13, 171,848.03 and 70,819.20 is: 97,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,540.13 : 171,848.03 = 70,819.20 : x
  2. Step 2: Convert to fraction form
    124,540.13/171,848.03 = 70,819.20/x
  3. Step 3: Cross multiply
    124,540.13x = 171,848.03 × 70,819.20
  4. Step 4: Simplify right side
    124,540.13x = 12,170,139,652.08
  5. Step 5: Solve for x
    x = 12,170,139,652.08/124,540.13
  6. Step 6: Final answer
    x = 97,720.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.